080921-0825 EST
tonytonon:
An open delta actually produces a three phase output, and thus I would not use the word simulate.
In our area there many uses of open delta for commercial applications. These applications generally have a lot of single phase 120 and 240 loads with a lesser need for 3 phase.
Our shop has such a supply. One large center tapped single phase transformer, and a smaller transformer to provide 3 phase. The whole building is about 40,000 sq-ft. In two of the spaces there are 3 phase CNC machines. We have 5 CNC machines and a number of other 3 phase machines. All the air conditioning is 3 phase. If our demand went up Edsion would simply add another transformer.
.